Cassette



Oct. 13, 1942. H. L. RAFFMAN CASSETTE Filed Nov. 15, 1941 2 Sheets-Sheetl ill Patented Oct. 13, 1942 UNH" STATES FFICE 5 Claims.

This invention relates to cassettes.

An object of this invention is to provide a strong, compact and durablecassette, which shall be relatively inexpensive to manufacture, easy toassemble, and in which the composition plate may be readily replaced,and which shall be relatively easy to manipulate, and yet practical andecient to a high degree in use.

Other objects of this invention will in part be obvious and in parthereinafter pointed out.

The invention accordingly consists in the features of construction,combinations of elements, and arrangement of parts which will beexemplied in the construction hereinafter described, and of which thescope of application will be indicated in the following claims.

In the accompanying drawings, in which is shown one of the variouspossible illustrative embodiments of this invention,

Fig. 1 is a top plan view of a cassette embodying the invention, withparts broken away and in cross-section;

Fig. 2 is a cross-sectional View taken on line 2 2 of Fig. 1;

Fig. 3 is a cross-sectional view taken on line Fig. 4 is acrossnsectional view taken on line lI-l of Fig. 1;

Fig. 5 is an enlarged, crosssectional view taken on line 5-5 of Fig. 1;

Fig. 6 is an enlarged, detailed view similar to one end of Fig. 3; and

Fig. 7 is a partial, top plan view of the cassette with the clampingcover plate opened up, and with parts broken away and in cross-section.

Referring now in detail to the drawings, designates a cassette embodyingthe invention. The same comprises a rectangular frame il supporting acomposition plate I2, and provided with a cover I3, adapted to beclamped to the frame to press negatives Id against the compositionplate.

The frame I I is constructed of generally tubular sheet metal. Saidframe has a front end Il, a rear end It, and parallel side portions I9.

Each of the front, rear outer vertical wall it, 2i extending inwardlythe wall portions and top horizontal wall porand side portions has anand a horizontal flange tions 22 extending inwardly from the upper endsof said vertical wall portions 2d.

It will be noted that the fianges 2i extend inwardly beyond the topwalls 22, the composition plate I2 resting on the inner portions offlanges 2l, as clearly illustrated in the drawings. EX-

from the lower ends of tending downwardly from the top walls 22 arevertical walls 2A, the lower edges of which contact the flanges ZI.

It will now be understood that the frame II comprises hollow tubularconstruction at the top, bottom and ends, with an inwardly extendingange to be engaged by the edges oi the composition plate I2.

Means is provided to retain the composition plate I2 in flanges EI. Tothis end, there is attached to the vertical walls 2li of the bottom andtop portions Il and it, straight bars 3S and 3|. Baril is attached tothe iront portion I'I by screws 39a, and bar 3l is attached to theportion I8 by screws Sia.

It will be noted that the bars 3%, SI are of rectangular cross-section,and are spaced above the flanges 2l a distance substantially equal tothe composition plate I2. Furthermore the bars 3Q, 31 terminate short ofthe side portions I9 of the frame II.

The ends of the wall portions 2li, at the top and bottom of the frameare formed with openings 33 and Sii, respectively. Attached to the innersurfaces of the vertical wall portions 2d at the sides I of the frame,are bars 35 attached to said wall portions Zby screws 35a. The ends ofbars V35 project through the openings 33 and 3g?, respectively, therebyaffording rigidity to the frame construction. The ends oi bars 3Scontact the bars 35. The bars 35 are likewise of rectangularcross-section, and spaced above flanges 2l by a distance equivalent tothe thickness of the composition plate, I2.

Composition plate is removable and replaceable by unscrewing screws 39a.and 3io to permit removal of bars 30, SI and by then removing screws 35ato permit bars 35 to be shifted endwise and then removed from the frame.

The clamping cover I3 comprises a cover plate di?, preferably smooth onits under-surface. The upper surface of cover plate i0 may becorrugated, as shown in the drawings. Attached to the under-suriace ofcover plate Lit, is a pad or sheet el of felt and lead, or any othersoit material, preferably folded around the edges of the cover plate, asat 42. Plate di) is formed with two pairs of horizontally alignedprojections or raised portions (i3, for the purpose hereinafterappearing. The cover plate 40 is of such size as to fit within the bars3Q, 5I, 35 and it is adapted to press the negatives HI against thecomposition plate.

Means is provided to hinge the cover plate 40 to the frame. To this end,there is fixed to the upper end of said cover plate, a pair of hingedplates 45 having upwardly, offset portions 46 extending beyond the coverplate, said portions 46 being formed with ears 41, for the purposehereinafter appearing.

The top wall 22 of top portion I8 of the frame is cut-away, as at 48, toadmit portions 46 of the hinge plate 45. Wall 24 of frame portion I8 islikewise cut-away as at 49, to admit offset portions 46 of the hingeplate 45. Wall 24 of the rear portion I8 is further cut-away, as at 50,below the cut-away portions 49, sufliciently to admit the ears 41. Thecut-away portions 50 are further covered by the bar 3I fixed to frameportion I8. Fixed to said bar 3| are a pair of rearwardly extendinghorizontal pins 53.

It will now be understood that upon removal of bar 3I, portions 36, 41of the hinges 45 may be inserted through the cut-out portions 50. The

ears 41 are then raised to engage the wall 24 on opposite sides ofcut-out 49. Bar 3I may then be attached in place so that the hingescannot be removed from tubular portion I8. Pins 53 contact the outeredges of the hinge plates as the cover is swung upwardly.

It will now be understood that the hinge provides for up and downmovement of the cover plate to accommodate different thicknessesinserted between the cover plate and the composition plate I2.

Means is provided to clamp the cover plate to the frame. To this end,there is attached to the cover plate a pair of upwardly extending rivetpins 66. Pivcted on each pin 60 is a spring clamp 6I, each having a pairof outwardly extending arms 62. The walls 24 of side portions I9 of theframe are formed with longitudinal slots 64 to receive the outer ends ofarm 62. The slots 64 on one portion I9 are offset with respect to saidslots in the other portion I9, so that clamping member 6I may be rotatedin one direction only, to clamp the cover plate, and in an oppositedirection only, to release the cover plate.

It will be noted that the arms 62 engage the raised portions orprojections 43 on the cover plate to press the outer ends of said armsagainst the upper edges formed by the slot 64 to clamp the cover plateto the frame. The arms 62 may be formed with recesses 68 adjacent theirouter ends to receive the lingers of the operator to facilitate swingingof the clamp 6I. The cover plate furthermore may be provided with ahinged loop 10 to facilitate lifting of the cover plate after it isreleased.

It will thus be seen that there is provided a device in which theseveral objects of this invention are achieved, and which is welladapted to meet the conditions of practical use.

As various possible embodiments might be made of the above invention,and as various changes might be made in the embodiment above set forth,it is to be understood that all matter herein set forth or shown in theaccompanying drawings is to be interpreted as illustrative and not in alimiting sense.

Having thus described my invention, I claim as new and desire to secureby Letters Patent:

l. A cassette comprising a frame having at one end, an outer verticalwall, a horizontal top wall, and an inner vertical wall, said to-p wallhaving a cut-away portion, said inner vertical wall being cut-awayadjacent its upper end to an extent equivalent to the cut-away at thetop wall, and being cut-away adjacent its bottom end on opposite sidesof the cut-away at its upper end, a bar iixed Sil to said inner verticalwall and covering the Wider cut-away portion of said inner verticalwall, a cover for said cassette, and a hinged plate xed to said coverand extending therebeyond, and formed with recesses, said hinge platepassing through the cut-away portion at the upper end of the innervertical wall.

2. A cassette comprising a frame having at one end, an outer verticalwall, a horizontal top wall, and an inner vertical wall, said top wallhaving a cut-away portion, said inner vertical wall being cut-awayadjacent its upper end to an extent equivalent to the cut-away at thetop wall, and being cut-away adjacent its bottom end on opposite sidesof the cut-away at its upper end, a bar Iixed to said inner verticalwall and covering the wider cut-away portion of said inner verticalwall, a cover for said cassette, a hinge plate fixed to said cover, andextending therebeyond, and formed with recesses, said hinge platepassing through the cut-away portion at the upper end of the innervertical wall, and means on said bar extending toward the outer verticalwall adapted to contact the outer end of said hinge plate.

3. A cassette comprising a frame having at one end, an outer verticalwall, a horizontal top wall, and an inner vertical wall, said top wallhaving a cut-away portion, said inner vertical wall being cut-awayadjacent its upper end to an extent equivalent to the cut-away at thetop wall, and being cut-away adjacent its bottom end on opposite sidesof the cut-away at its upper end, a bar xed to said inner vertical walland covering the wider cut-away portion of said inner vertical wall, acover for said cassette, a hinge plate xed to said cover, and extendingtherebeyond, and formed with recesses, said hinge plate passing throughthe cut-away portion at the upper end of the inner vertical wall, andmeans on said bar extending toward the outer vertical wall adapted tocontact the outer end of said hinge plate, said frame having sideportions likewise formed with outer vertical walls, horizontal top wallsand vertical inner walls, the vertical inner walls of the 1 sideportions of the frame being formed With longitudinal slots, and springclamps pivoted to said cover plate, and having outwardly extending armsadapted to be received within said longitudinal slots.

4. A cassette comprising a frame having at one end, an outer verticalwall, a horizontal top wall, and an inner vertical wall, said top wallhaving a cut-away portion, said inner vertical wall being cut-awayadjacent its upper end to an extent equivalent to the cut-away at thetop wall, and being cut-away adjacent its bottom end on opposite sidesof the cut-away at its upper end, a bar iixed to said inner verticalwall and covering the wider cut-away portion of said inner verticalwall, a cover for said cassette, a hinge plate iixed to said cover, andextending therebeyond, and formed with recesses, said hinge platepassing through the cut-away portion at the upper end of the innervertical wall, means on said bar extending toward the outer verticalwall adapted to contact the outer end of said hinge plate, said framehaving side portions likewise formed with outer vertical walls,horizontal top walls and vertical inner walls, the vertical inner wallsof the side portions of the frame being formed with longitudinal slots,and spring clamps pivoted to said cover plate, and having outwardlyextending arms adapted to be received within said longitudinal slots,said cover plate having upwardly extending projections adapted to engagesaid spring arms, when the spring arms are moved into said longitudinalslots.

5. A cassette comprising a frame having top, bottom and side portions,each of said portions comprising outer vertical walls, horizontal,inwardly extending top walls, and downwardly extending, inner verticalwalls, and inwardly extending, horizontal flanges extending inwardlybeyond said inner vertical walls, a composition plate mounted on saidflanges, a pair of bars fixed to the inner vertical walls of the top andbottom portions of said frame, said inner vertical walls of the top andbottom portions of the frame being formed with openings at their outerends, and a pair of bars fixed to the inner vertical walls of the sideportions of the frame and having the ends thereof received within theopenings of the inner vertical walls at the top and bottom of the frame,the bar xed to the inner vertical wall of the top portion of the frame,being provided with a pair of horizontal pins extending toward the outervertical wall of said top portion of the frame, a cover plate, hingemembers xed to said cover plate, the inner vertical wall at the topportion of the frame being formed with cut-outs widened at their lowerends, and said hinge members having ears adapted to pass through thewidened portions of the cutouts, and the bar which is xed to the innervertical wall of the top portion of the frame, being adapted to coverthe widened portions of said cut-out.

HALSEY L. RAFFMAN.

